Insects Flashcards

1
Q

Scabies

A

Contagious disease caused by an itch mite
Transmitted via personal contact
Female mite tunnels into skin depositing eggs & creating a burrow (mm to 1 cm long)
Symptoms appear 3-5 weeks later
Primary lesion (burrows, papules, vesicles)
Severe pruritus that is worse at night

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2
Q

Pediculosis

A

Lice infestation that can occur in 3 areas:
Head (pediculosis capitis)
Body (pediculosis corporis)
Pubic area (phthirus pubis)

Highly contagious

Female louse reproduces every 2 weeks producing hundred of nits

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3
Q

Lice

A

Lice pierce skin & secrete a toxic saliva pruritus

Pruritus is the major symptom

Other symptoms:
Body lice:
pinpoint red macule, papule or wheal with a hemorrhagic puncture site

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4
Q

Bed Bugs

A
Parasites living in furniture, walls, floors and bedding
Reddish brown in color
Attach to skin and suck blood from host
Attracted by warmth and CO2
Symptoms:
Erythema
Pruritic papules
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